Love watching this DVD because it makes you think on how we got here. Where are we going. How far can we go? Will we find another earth we can live and work. What happens if we have no sun. How everything is connected. What happens if one thing goes wrong. It all makes you wonder. I always need to know how things work. What we are. Really wish I could go out in space and see all that's out there. See how it all started.